The state of the environment of the Loosdrecht lakes.
In: Liere L van, Gulati RD, eds. Restoration and recovery of shallow eutrophic lake ecosystems in the Netherlands. Proceedings of a conference, Amsterdam, The Netherlands, April 1991. Dordrecht: Kluwer, 1992;11-20 (Developments in Hydrobiology 74; Hydrobiologia 233)